PLATE LI. 

 Jurassic Dinosaurs. — Pbedentata. 



STEGOSAUKIDJi. 



Page. 

 Caudal vertebra?, spines, and plate of Diracodon laticeps Marsh ; seen from the 



left ;, one-sixth natural size 193 



a, right anterior spine; a', left anterior spine; 1>, small caudal plate; c, 

 chevron hone; p, right posterior spine; p', left posterior spine; t, ter- 

 minal vertebra ; r, median caudal vertebra. 

 The hones represented are essentially in the position in which they 

 were found. 

 346 



